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Étude multifactorielle de l'aptitude à l'effort chez le cheval de selle

1989; EDP Sciences; Volume: 38; Issue: 2-3 Linguagem: Francês

10.1051/animres

1297-9651

Éric Barrey, Jean-Philippe Valette, R. Wolter,

Pharmacological Effects and Assays

— La performance sportive, chez le cheval, résulte du concours de facteurs extrinsèques et intrinsèques, d'ordre physiologique, énergétique ou biomécanique.Cette étude tente de préciser les potentialités de 16 chevaux de selle par une analyse multifactorielle basée sur des critères car- diaques, hématologiques, énergétiques et sur des paramètres d'allure.L'analyse en composantes principales (ACP) décrit les liens et les redondances, ainsi que les antagonismes entre les variables étudiées.L'analyse factorielle discriminante (AFD) différencie les races en fonction de ces mêmes variables.Ces modalités d'analyse multifactorielle, qui réalisent la synthèse de toutes les informa- tions disponibles, semblent bien adaptées à l'estimation des aptitudes sportives.analyse multifactorielle -aptitudes sportives -test d'effort -paramètres d'allure - critères de forme physique Summary — Multicomponent analysis of exercise fitness in saddle horses.Equine exercise performance depends on numerous extrinsic factors which interact with each other.Physiological, energetic and biochemical factors have to be investigated simultaneously to study exercise performance capacity.The pur,oose of this study was to determine the capacities of 16 saddle horses by measuring cardiac, haematological, energetic and gait parameters.Multivariate statistical methods such as principal component analysis and discriminant analysis were used to describe the relation- ships between variables and to compare the exercise fitness of each horse, taking into account all the information obtained.These statistical methods indicated interesting relations of causality or redundancy between the parameters.Study of the horses revealed a better aptitude in sprint, resis- tance or endurance exercise in some of them.Discriminant analysis distinguished between breeds on the basis of the different physiological and gait parameters measured.It was concluded that multivariate analysis was well adapted to analyse the exercise fitness on the basis of several criteria by providing synthetic information.multicomponent analysis -exercise fitness -exercise testing -gait parameters — fitness criteria